EP0345167A1 - Anordnung zur Befestigung von Schutzgittern oder Sichtblenden an Geräten, insbesondere an elektrischen und elektronischen Geräten - Google Patents

Anordnung zur Befestigung von Schutzgittern oder Sichtblenden an Geräten, insbesondere an elektrischen und elektronischen Geräten Download PDF

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Publication number
EP0345167A1
EP0345167A1 EP89401521A EP89401521A EP0345167A1 EP 0345167 A1 EP0345167 A1 EP 0345167A1 EP 89401521 A EP89401521 A EP 89401521A EP 89401521 A EP89401521 A EP 89401521A EP 0345167 A1 EP0345167 A1 EP 0345167A1
Authority
EP
European Patent Office
Prior art keywords
slots
grids
bosses
fixing
appliances
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89401521A
Other languages
English (en)
French (fr)
Other versions
EP0345167B1 (de
Inventor
Hubert Gate
Dominique Huerre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dElectronique de la Region Pays de Loire
Original Assignee
Societe dElectronique de la Region Pays de Loire
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe dElectronique de la Region Pays de Loire filed Critical Societe dElectronique de la Region Pays de Loire
Publication of EP0345167A1 publication Critical patent/EP0345167A1/de
Application granted granted Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers

Definitions

  • the present invention relates to a device for fixing grids or decor plates and for protecting devices, in particular electrical and electronic devices.
  • the decorative and protective grilles such as the grids of facades of electronic devices and the grids of loudspeaker boxes, whether metallic or plastic must in most cases be securely fixed on their supports in order Avoid their vibration, which can be annoying and even cause their detachment if they are not securely fixed.
  • these grids are generally provided with sufficiently long legs, the ends of which are twisted, but such an operation cannot be easily automated and requires access from the rear of the cabinet.
  • Another known device for fixing such grids consists in providing them with lugs comprising a cut-out in which a pawl secured to the box is snapped in, but such a solution does not allow the fixing of the grids to resist vibration for a long time because the usual tolerances mass production do not guarantee a fairly precise positioning of the cut.
  • the present invention relates to a device for fixing grids or plates of the aforementioned type, guaranteeing them a very good resistance to vibrations, which is simple, which can receive both plastic grids and metal grids, and which allows easy automation of the installation of these grids.
  • the device for fixing the decorative grids and protection comprises fixing lugs on these grids on which bosses are formed which snap into corresponding slots in the support of these grids, the wall part of each of these slots which cooperates with the corresponding boss being elastic .
  • the bosses have an insertion face in the slots with a lower slope than that of the rear face.
  • the elasticity of the walls of the slots is obtained by practicing, parallel to these slots, on the side of the bosses, slots having approximately the same dimensions as the first, the partition of material remaining each time between these two slots having a thickness such that it gives it sufficient elasticity and resistance to snap-fastening.
  • connection lugs are formed on these grids, one of the long sides of which is substantially straight.
  • the invention is described below with reference to a decor grid intended to be fixed to the molded plastic facade of a television on which are fixed, for example speakers, control buttons, etc. East it is understood that the invention is not limited to such an application, and that it can be implemented for fixing a grid or a non-perforated or partially perforated plate with decoration and / or protection on a support surface to allow mounting by simple translation, therefore easily robotizable.
  • the device of the invention is particularly advantageous in cases where the support surface frequently transmits vibrations, as is in particular the case for surfaces on which speakers are fixed.
  • FIG 1 there is shown a front portion 1 of television, made by molding plastic. There are in particular a circular cutout 2 behind which is fixed a loudspeaker (not shown).
  • the facade 1 comprises several sets 3 of two slots distributed around its periphery for fixing a decor grid 4A (made of metal) represented on the left part of FIG. 2 or 4B (made of plastic) represented on the right part of Figure 2.
  • a decor grid 4A made of metal
  • 4B made of plastic
  • Each set 3 has two rectangular slots 5,6 parallel to each other.
  • these slots are parallel to the sides of the grid 4A (or 4B).
  • the width of the partition 7 separating the slots 5,6 is such that, taking into account the thickness of the facade 1 around the slots 5,6, this partition has sufficient elasticity and solidity to allow the passage of the bosses, described below, formed on the lugs for fixing the grid and for retaining them, whether this grid is metallic or made of plastic.
  • a single model of facade can receive both metal grids and plastic of different aesthetics, in order to personalize different series of televisions by changing the minimum possible of elements.
  • the width of the partition 7 (that is to say the distance between the slots 5 and 6) is about 2 mm, the slots 5 and 6 having a length of about 15 to 25 mm.
  • the grid is metallic (grid 4A)
  • it comprises tabs 8, of a width of approximately 20 mm which are intended to be introduced into the external slots 5.
  • Each of these tabs 8 has on its internal face a boss 9 produced by simple stamping.
  • the boss 9, of substantially pyramidal shape has a substantially planar introduction face 10 making an angle a1 with the plane of the rest of the tab 8.
  • the rear face 11 of the boss 9, which constitutes its active face forms an angle a2 with the plane of the rest of the tab 8.
  • the angle a1 is less than the angle a2.
  • the angle a1 is approximately 30 °, and the angle a2 is approximately 60 °.
  • the small angle a1 allows easy introduction of the tab into the corresponding slot, while the larger angle a2 ensures good retention of the tab in the slot by offering great resistance to the withdrawal of the tab.
  • the length of the face 11 is large enough to compensate for the manufacturing tolerances of the grids and the facades, that is to say that the edge 12 of the slot 5 must always bear on the face 11 when the grid is in place.
  • the boss 9 ensures a backlash.
  • the grid When the grid is made of plastic (4B), it is formed with lugs 13, the ends of which are formed with bosses 14 similar to the bosses 9 of the legs 8. These bosses 14 are formed on the outer faces of legs 13 since these legs are intended to be introduced, according to the present example, into the interior slots 6. As for the bosses 9, the bosses 14 have an introduction face 15 having a lower slope than that of the rear face 16.
  • connection lugs such as the female lugs 17 shown in the drawing
  • connection lug 18 is formed on this grid.
  • these lugs are cut so that one of their long sides, for example side 19 is straight. Since the pitch of the grids can be very variable, it is quite possible that if these legs are cut to the necessary width without correctly placing the cutting lines, the two sides of the legs are bristling like the sides 20 of the legs 18, making difficult to insert the legs into the pods 17.
  • the number of legs depends on the dimensions of the grid, its shape and its rigidity.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
EP89401521A 1988-06-03 1989-06-02 Anordnung zur Befestigung von Schutzgittern oder Sichtblenden an Geräten, insbesondere an elektrischen und elektronischen Geräten Expired - Lifetime EP0345167B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807405A FR2632472B1 (fr) 1988-06-03 1988-06-03 Dispositif de fixation de grilles ou plaques de decor et de protection d'appareils, en particulier d'appareils electriques ou electroniques
FR8807405 1988-06-03

Publications (2)

Publication Number Publication Date
EP0345167A1 true EP0345167A1 (de) 1989-12-06
EP0345167B1 EP0345167B1 (de) 1993-09-01

Family

ID=9366912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401521A Expired - Lifetime EP0345167B1 (de) 1988-06-03 1989-06-02 Anordnung zur Befestigung von Schutzgittern oder Sichtblenden an Geräten, insbesondere an elektrischen und elektronischen Geräten

Country Status (6)

Country Link
US (1) US4934480A (de)
EP (1) EP0345167B1 (de)
JP (1) JP2625546B2 (de)
DE (1) DE68908778T2 (de)
FR (1) FR2632472B1 (de)
HK (1) HK14697A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406115A1 (de) * 1994-02-25 1995-08-31 Ibm Sichtschutzvorrichtung für Tastaturen

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416284A (en) * 1994-02-25 1995-05-16 Hardigg Industries Inc. Speaker enclosures
US5565659A (en) * 1995-02-27 1996-10-15 Oakwood Metal Fabricating Company Speaker cover grille
CA2169910C (en) * 1995-02-27 2000-07-18 Bernard T. Moner, Jr. Speaker cover grille
US5639140A (en) * 1996-03-01 1997-06-17 General Motors Corporation Hook retainer for a vehicle trim panel
US5717171A (en) * 1996-05-09 1998-02-10 The Solar Corporation Acoustical cabinet grille frame
DE19626291A1 (de) * 1996-07-01 1998-01-08 Teves Gmbh Alfred Befestigungshülse für Ultraschallwandler mit selbstsichernder Befestigung
US5888439A (en) * 1996-11-14 1999-03-30 The Solar Corporation Method of molding an acoustical cabinet grille frame
JPH11105635A (ja) * 1997-10-08 1999-04-20 Toyota Autom Loom Works Ltd リヤコンビネーションランプ用サービスカバー
USD406143S (en) * 1998-04-29 1999-02-23 Montaldo Stuart F Front face of speaker disguise
US6487299B1 (en) * 2000-04-03 2002-11-26 Jack Peng Quick-detachable structure for on-wall speaker panel
JP2005277868A (ja) * 2004-03-25 2005-10-06 Pioneer Electronic Corp 樹脂フレーム、樹脂グリル及びスピーカ−装置
DE102004023572B3 (de) * 2004-05-13 2006-03-16 Schroff Gmbh Vorrichtung zum Befestigen einer Frontplatte
US8064629B2 (en) * 2007-09-27 2011-11-22 Peigen Jiang Decorative loudspeaker grille
US20090100654A1 (en) * 2007-10-19 2009-04-23 Nissan Technical Center North America, Inc. Apparatus and method for attaching covering material to interior components of a vehcile
JP1549098S (de) * 2015-11-26 2016-05-16

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390796A (en) * 1972-10-10 1975-04-16 Koppel K Snap fasteners
US4244096A (en) * 1978-05-31 1981-01-13 Kyowa Denki Kagaku Kabushiki Kaisha Speaker box manufacturing method
US4424881A (en) * 1982-02-17 1984-01-10 Emhart Industries, Inc. Speaker assembly
DE3311666A1 (de) * 1983-03-30 1984-10-04 Siemens AG, 1000 Berlin und 8000 München Verfahren zur befestigung eines elektroakustischen wandlers in einem fernsprechgehaeuse
CH660106A5 (en) * 1983-09-12 1987-03-13 Autophon Ag Arrangement of a loudspeaker in a housing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4424381A (en) * 1982-04-26 1984-01-03 Koppers Company, Inc. Process for separating dihydric phenols
JPS61123576U (de) * 1985-01-22 1986-08-04
JPS61179782U (de) * 1985-04-26 1986-11-10

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390796A (en) * 1972-10-10 1975-04-16 Koppel K Snap fasteners
US4244096A (en) * 1978-05-31 1981-01-13 Kyowa Denki Kagaku Kabushiki Kaisha Speaker box manufacturing method
US4424881A (en) * 1982-02-17 1984-01-10 Emhart Industries, Inc. Speaker assembly
DE3311666A1 (de) * 1983-03-30 1984-10-04 Siemens AG, 1000 Berlin und 8000 München Verfahren zur befestigung eines elektroakustischen wandlers in einem fernsprechgehaeuse
CH660106A5 (en) * 1983-09-12 1987-03-13 Autophon Ag Arrangement of a loudspeaker in a housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406115A1 (de) * 1994-02-25 1995-08-31 Ibm Sichtschutzvorrichtung für Tastaturen

Also Published As

Publication number Publication date
FR2632472B1 (fr) 1990-07-27
DE68908778D1 (de) 1993-10-07
FR2632472A1 (fr) 1989-12-08
JP2625546B2 (ja) 1997-07-02
HK14697A (en) 1997-02-14
EP0345167B1 (de) 1993-09-01
DE68908778T2 (de) 1993-12-23
JPH02139995A (ja) 1990-05-29
US4934480A (en) 1990-06-19

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